Available-for-sale Securities, Sold Security, at Carrying Value

No definition available.

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Namespace Prefix:	unty_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of Securities Sold

+ References

No definition available.

+ Details

Name:	unty_NumberOfSecuritiesSold
Namespace Prefix:	unty_
Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5086-111524

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesPledgedAsCollateral
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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Securities - Realized Gains and Losses (Narrative) (Details)	3 Months Ended
	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($) security	Dec. 31, 2016 USD ($)
Schedule of Investments [Line Items]
Available-for-sale securities, realized gains	$ 0
Available-for-sale securities, gross realized gain (loss)	0	$ 94,000
Available-for-sale securities pledged as collateral	$ 19,400,000		$ 17,700,000
Municipal Securities
Schedule of Investments [Line Items]
Available-for-sale securities, gross realized gain (loss)		$ 31,000
Number of securities sold \| security		3
Available-for-sale securities, book value		$ 2,400,000
Equity Securities
Schedule of Investments [Line Items]
Available-for-sale securities, gross realized gain (loss)		$ 63,000
Number of securities sold \| security		1
Available-for-sale securities, book value		$ 40,000